Hisashi AKIYAMA

Person

Nagaokakyo-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Matching circuit, matching circuit element, and communication device
- Patent number 11,777,466
- Issue date Oct 3, 2023
- Murata Manufacturing Co., Ltd.
- Hisashi Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Matching circuit and communication device
- Patent number 11,545,953
- Issue date Jan 3, 2023
- Murata Manufacturing Co., Ltd.
- Hisashi Akiyama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Matching circuit and communication device
- Patent number 11,095,265
- Issue date Aug 17, 2021
- Murata Manufacturing Co., Ltd.
- Hisashi Akiyama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Impedance conversion element and communication device
- Patent number 10,263,324
- Issue date Apr 16, 2019
- Murata Manufacturing Co., Ltd.
- Hisashi Akiyama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Common mode filter and ESD-protection-circuit-equipped common mode...
- Patent number 9,755,606
- Issue date Sep 5, 2017
- Murato Manufacturing Co., Ltd.
- Noriyuki Ueki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Laminated common-mode choke coil
- Patent number 9,666,356
- Issue date May 30, 2017
- Murata Manufacturing Co., Ltd.
- Noboru Kato
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Common mode filter
- Patent number 9,344,054
- Issue date May 17, 2016
- Murata Manufacturing Co., Ltd.
- Kuniaki Yosui
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Laminated common-mode choke coil
- Patent number 9,245,681
- Issue date Jan 26, 2016
- Murata Manufacturing Co., Ltd.
- Noboru Kato
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Surface mount antenna, antenna device using the same, and communica...
- Patent number 6,950,072
- Issue date Sep 27, 2005
- Murata Manufacturing Co., Ltd.
- Akira Miyata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circularly polarized antenna apparatus and radio communication appa...
- Patent number 6,677,902
- Issue date Jan 13, 2004
- Murata Manufacturing Co., Ltd.
- Hisashi Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circularly polarized wave antenna and manufacturing method therefor
- Patent number 6,483,465
- Issue date Nov 19, 2002
- Murata Manufacturing Co., Ltd.
- Shigekazu Itoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circularly polarized wave antenna device
- Patent number 6,437,744
- Issue date Aug 20, 2002
- Murata Manufacturing Co., Ltd.
- Hisashi Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circularly polarized antenna device and radio communication apparat...
- Patent number 6,396,442
- Issue date May 28, 2002
- Murata Manufacturing Co., Ltd.
- Kazunari Kawahata
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
MATCHING CIRCUIT AND COMMUNICATION DEVICE
- Publication number 20210336598
- Publication date Oct 28, 2021
- Murata Manufacturing Co., Ltd.
- Hisashi AKIYAMA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
MATCHING CIRCUIT, MATCHING CIRCUIT ELEMENT, AND COMMUNICATION DEVICE
- Publication number 20210297052
- Publication date Sep 23, 2021
- Murata Manufacturing Co., Ltd.
- Hisashi AKIYAMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MATCHING CIRCUIT AND COMMUNICATION DEVICE
- Publication number 20200228086
- Publication date Jul 16, 2020
- Murata Manufacturing Co., Ltd.
- Hisashi AKIYAMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMPEDANCE CONVERSION ELEMENT AND COMMUNICATION DEVICE
- Publication number 20170324158
- Publication date Nov 9, 2017
- Murata Manufacturing Co., Ltd.
- Hisashi AKIYAMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMMON MODE FILTER AND ESD-PROTECTION-CIRCUIT-EQUIPPED COMMON MODE...
- Publication number 20160142031
- Publication date May 19, 2016
- Murata Manufacturing Co., Ltd.
- Noriyuki UEKI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LAMINATED COMMON-MODE CHOKE COIL
- Publication number 20160104569
- Publication date Apr 14, 2016
- Murata Manufacturing Co., Ltd.
- Noboru KATO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMMON MODE FILTER
- Publication number 20150214915
- Publication date Jul 30, 2015
- Murata Manufacturing Co., Ltd.
- Kuniaki YOSUI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
LAMINATED COMMON-MODE CHOKE COIL
- Publication number 20140306787
- Publication date Oct 16, 2014
- Noboru KATO
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Surface mount antenna, antenna device using the same, and communica...
- Publication number 20040085245
- Publication date May 6, 2004
- Murata Manufacturing Co., Ltd.
- Akira Miyata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Circularly polarized antenna apparatus and radio communication appa...
- Publication number 20030058175
- Publication date Mar 27, 2003
- Murata Manufacturing Co., Ltd.
- Hisashi Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Circularly polarized wave antenna and manufacturing method therefor
- Publication number 20020036590
- Publication date Mar 28, 2002
- Murata Manufacturing Co., Ltd.
- Shigekazu Itoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Circularly polarized wave antenna device
- Publication number 20020033770
- Publication date Mar 21, 2002
- Murata Manufacturing Co., Ltd.
- Hisashi Akiyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Circularly polarized antenna device and radio communication apparat...
- Publication number 20020024465
- Publication date Feb 28, 2002
- Murata Manufacturing Co., Ltd.
- Kazunari Kawahata
- H01 - BASIC ELECTRIC ELEMENTS

Hisashi AKIYAMA

Person

Patents Grantslast 30 patents

Matching circuit, matching circuit element, and communication device

Matching circuit and communication device

Matching circuit and communication device

Impedance conversion element and communication device

Common mode filter and ESD-protection-circuit-equipped common mode...

Laminated common-mode choke coil

Common mode filter

Laminated common-mode choke coil

Surface mount antenna, antenna device using the same, and communica...

Circularly polarized antenna apparatus and radio communication appa...

Circularly polarized wave antenna and manufacturing method therefor

Circularly polarized wave antenna device

Circularly polarized antenna device and radio communication apparat...

Patents Applicationslast 30 patents

MATCHING CIRCUIT AND COMMUNICATION DEVICE

MATCHING CIRCUIT, MATCHING CIRCUIT ELEMENT, AND COMMUNICATION DEVICE

MATCHING CIRCUIT AND COMMUNICATION DEVICE

IMPEDANCE CONVERSION ELEMENT AND COMMUNICATION DEVICE

COMMON MODE FILTER AND ESD-PROTECTION-CIRCUIT-EQUIPPED COMMON MODE...

LAMINATED COMMON-MODE CHOKE COIL

COMMON MODE FILTER

LAMINATED COMMON-MODE CHOKE COIL

Surface mount antenna, antenna device using the same, and communica...

Circularly polarized antenna apparatus and radio communication appa...

Circularly polarized wave antenna and manufacturing method therefor

Circularly polarized wave antenna device

Circularly polarized antenna device and radio communication apparat...